Machine for working wood and the like



May 28, 17946; o. LANGFELDE'R MACHINE FOR WORI-{IN'G'WOOD AND THELIKEFild oct. 14, 194s 4 TTG/PNE YS y May 28, 1.946. o. LANGFELDR I2,401,002

' MACHINE FON WORKING gwoon AND THE LIKE Filed Oct.- 14, 1945 2Shets-Slheet 2 v 152 Je 2 Ifo fj l r -11.441 1 5, 144 g F1 il .a0

:1' I lll f@ z (1' 26 04 v Q f f3? l l .[02 o l I j f f. Q 1| 90 Il] 21oi /40 la@ I 46 a l zu 142 l' Il J6V 166 L ma 6g [il {70 {68 INVENTOR.07'70 LANGFELDE/P Patented May 28, 1946 2,401,002 MACHINE FOR WORKINGWOOD AND THE LIKE Otto Langfelder, New York, N. Y. Application October14, 1943, Serial No. 506,290

1 Claim. My invention relates to or otherwise forming interior designsthrough Sewing niacin-neef- In forming theee designs, en outline thereofsuperposed onthe material to be Worked,

, Passed therethrough. Scroll` or jig-sawing machines are well known,but in almost every instance they empleyetner eContinyin.vfnitioii,`therefore, is. the provision of e combined holeboring and de-l Dilot opening; in. rotates the hole Cates the saw; in

Other and further objects of my invention will be pointed outspecifically hereinbelow, and still others will be apparent from thefollowing description ofv an illustrative embodiment.

In the drawings annexed hereto and forming a part hereof,

Figure 1 is a side View, partly in section, of one structed according toand tion;

Fig. 2 is a top section:

Fig. 3 is an end elevational view, as seen from the left side of Fig.v1;

Fig. 4 isl an end elevational the right side of 1; and

Fig. 5v is a side elevational View 0f the pedal and, bedel-.eatenarrangement Seen in end elevanon 'in Fig.4 a. l

I provide a freine In which comprises. dat top portion l2 and a, numberof legs I4, supporting partly in elevation and form of machine. comembodying my invenplan view thereof, also partly in View, as; seen fromfor the borer and saw respectively.

I provide a supporting housing 46, formed as by casting or otherwise,comprising a bed portion 42, which is clamped or bolted atop table I2,land having a pair of vertlcally upstanding spaced-apart standards 44,46. Master gear 20 is mounted 0n a rocker 44 and shafts 24, 26 projectthrough standard 44, and are journalled in suitable recesses in upright46. Y

The main shaft 50 is fixed at one end thereof to rocker arm 2-2, andmaster ring gear 20 is rotatably mounted thereon, adapted to bfe rotatedon shaft 5,0 along with belt-52 driven Wheel 54.

2U. At its enter end I4Lv shaft 24 has along therewith.` The lowerportionof rockerarm 2% is widened, as indicated at 118;, andhas; formedtherein three notches or recesses- Bit, 8.2, 84. A suitable springpressed ball orother detent 86 is provided and is mounted withinstandard 44, ball 86 being reeeivedv within thel recesses 89, B2, hold`the rocker arm (and gear i sired position; in neutral position, inrecess tures |60,

in shaft-24 engaging position in recess 82; in shaft-26 engagingposition in recess 84.

An arm 90 is provided, integral with and extending outwardly fromstandard 46. Arm 90 is formed as by casting or otherwise, and comprisesfront wall 92, rear wall 94, and a side wall 96 Shaft 26 extends throughstandard 46 and through a registering aperture 98 in side wall 96. Apair of vertically spaced-apart, horizontally extending bracket arms|00, |02 are formedon arm 90, and shaft 26 extends through standard 46and through a registering aperture 98 in side wall 96, and into thespace between brackets |00, |02. A crank wheel |04 is fastened onto theterminal end of shaft 26, for rotation therewith, pivotally connected tothe upper end of a pitman |06, the lower end of which is suitably callyreciprocating shaft |08, which through vertically aligned apertures and||2 in brackets |00, |02 respectively. Thus, as shaft 26 rotates crankwheel |04, shaft |08 is caused to reciprocate vertically. A socket I4 isfastened onto the lower end of Shaft |08, and a saw blade ||6, of anydesired length, may be'secured in socket |14. Blade ||6 is secured atonly one end, and is preferably formed of such material and of suchthickness as to operate when secured at only the upper end thereof, andits length, in respect of the table top |2 may be regulated, as desired.i Y i Shaft 24 has secured thereon, for rotation therewith, an annularlygrooved wheel |20. Atop upright 46, I mount'an angularly extending Varm|22 and journal a shaft |24 therein. A pair of annularly grooved idlerrollers |26, |26 are secured onto the ends of shaft |24. As seen inFigs. 1 and 2, rollers |26, |26 are mounted at right angles toywheel|20. Apair of vertically aligned openings |28, |30 Vare formed throughbrackets |00, |02, respectively, and a shaft |32 threaded therethrough.An annularly grooved roller |34 is fixed on shaft |32, level with thetopsy of rollers A|26, |26. A continuous. belt or pulley |36 is passedabout wheel |20, over rollers |26,

and

|26 and around roller |34, and as shaft 24 is rotated, the horizontall'ne rotation thereof will be translated into vertical `line rotation ofshaft |32.

A drill socket |40 is secured at the lower end of shaft |32, into whichsuitably sized and shaped t bits, as |42 may be secured. The upper endof shaft |32 is provided with outwardly projecting cross pins |44, |44which are received within a cross-head frame |46 attached to anelongated arm |48. The rear end of arm |48 may be pivoted on shaft |24,and the front end may be passed through between a pair of upright guidebars |50, |50 mounted atop bracket |00. A coil spring |52 may be securedat its lower end to arm |48 and at its upper end to the cross bar |53connecting guides |50, |50, so that downward movement of arm |48 will beresisted by the tensioning of spring |52. The normal tensioning ofspring |52 is such, and the positioning of parts is such, that, as Seenin Figs; 1 of shaft |32 will normally be raised above the top of thework table surface.

The operating'portion of table I2 is, Yof course, below the hole borershaft |32 and saw shaft |08, and suitable apertures |90, |92 are formedthrough table l2 in line with shafts |08, |32, respectively (see Fig.1). A number of other aper- |60 are formed through table |2, spacedabout apertures |90, |92 and inwardly of the edges of the table.V

and 3, the bottom .I

projects the top of the table, defining recesses |62, |62, and a coilspring |64 is disposed within each recess |62, |62.

A fiat sheet or platform |66 is provided, of area substantially equaltop, and a number of |68 are secured to the underside thereof, extendingthrough coil springs |64 and through opening |60, |60 beyond theunderside of the table. A cross-arm or spider |10 is secured to theprojecting ends of bolts |68, and a 'chain' |12 is provided, the upperend of which isV secured to spider |10, and the lower end of which issecured to a foot board or pedal |14. A catch |16 is located adjacentpedal |14, to lock same as desired when it is depressed below the levelof finger |18. As seen in Fig. 3, when pedal |14 is depressed, it drawsplatform |66 down to lie flatly against table top |2. Openings |80, |82are formed through platform |66 aligned with openings |90, |92respectively. Catch |16 may be shifted away from peda |14 to permit sameto be raised by the expansion of coilA springs' |64, |64.

shaft 26 beit a gear 202 has a fan blade 206 thereon, projecting into ahousing 208 the mouth 2|0 of which is directed towards openings |80,|82, |90, |92, so that as sawdust and shavings are created by the boringand sawings, same will be blown away, keeping the work clean andpermitting the operator to observe the progress of the work at allstages thereof.

In operation, the piece of wood or other material to be worked is laidflatly atop platform |66. Pedal |14 is depressed and locked in thedepressed position by catch |16, chain |12 carrying platform |66 downwith it until it is lying flatly against the top of table Rocker arrn 22is then grasped by the operator and pulled forward meshing master ringgear 12, causing rotation of shaft 24 which will be translated intorotation of shaft |32. Arm |48 through the board by bit treated, thedownward pressure on arm |48 is These apertures arefenlarged nearrelaxed, permitting the arm to be drawn upwardly by the contraction ofspring |52. Catch |16 is then disengaged from pedal |14, and platform|66 permitted to rise carrying the work with it. The

material being treated is thereupon shifted on platform |66 so as tobring the hole just bored therethrough into line with saw blade I6.Rocker arm 22 is thrown forwardly and locked via ball 86 fitting intorecess 84, and gear 16 engaged causing rotation of shaft 26 which istranslated into vertical reciprocatingmcvement of the saw blade ||6. Theboard being worked is thereupon shifted in accordance with the designftobe desired, and fan 206 will blow the sawdust away so that the operatorcan observe the progress of the sawing.

Y It will be seen that I have provided in my` master ring geararrangement a device whereby both the boring and sawing mechanisms areactuated from a single source of power (the motor for rotating belt orpulley 52 is not shown) With my device, the saw blade need never bedisengaged except if broken or for replacement purposes. The provisionofthe vertically shiftable platform provides a resilient working surfaceand the scroll sawing or jig sawing with my mechanism may be carried onmuch more eiciently and economically than in past constructions.

2,401,002 s 3 Having now described my invention, what I to bring sametowards and atly against the table claim and c iesire to secure byLetters Patent is: top, said platform having a plurality 0f elongatedthe table, and means to shift the platform down- 10 OTTO LANGFELDE'R.

